---
name: "Authen::SASL::Perl::DIGEST_MD5"
section: "3pm"
platform: "linux"
package: "perl-authen-sasl"
version: "2.2100-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Authen::SASL::Perl::DIGEST_MD5"
---

# Authen::SASL::Perl::DIGEST\_MD5(3pm)

(DEPRECATED) Digest MD5 Authentication class

## NAME

Authen::SASL::Perl::DIGEST\_MD5 - (DEPRECATED) Digest MD5 Authentication class

## VERSION

version 2.2100

## SYNOPSIS

```
  use Authen::SASL qw(Perl);
  $sasl = Authen::SASL->new(
    mechanism => 'DIGEST-MD5',
    callback  => {
      user => $user,
      pass => $pass,
      serv => $serv
    },
  );
```

## DESCRIPTION

This method implements the client and server parts of the DIGEST-MD5 SASL algorithm, as described in RFC 2831.

Please note that this mechanism has been moved to the "OBSOLETE" section of the mechanism registry \<https://www.iana.org/assignments/sasl-mechanisms/sasl-mechanisms.xhtml\> as per RFC6331 \<https://www.rfc-editor.org/rfc/rfc6331.html\>.

### CALLBACK

The callbacks used are:

*client*

- authname

  The authorization id to use after successful authentication

- user

  The username to be used in the response

- pass

  The password to be used to compute the response.

- serv

  The service name when authenticating to a replicated service

- realm

  The authentication realm when overriding the server-provided default. If not given the server-provided value is used.

  The callback will be passed the list of realms that the server provided in the initial response.

*server*

- realm

  The default realm to provide to the client

- getsecret(username, realm, authzid)

  returns the password associated with `"username"` and `"realm"`

### PROPERTIES

The properties used are:

- maxbuf

  The maximum buffer size for receiving cipher text

- minssf

  The minimum SSF value that should be provided by the SASL security layer. The default is 0

- maxssf

  The maximum SSF value that should be provided by the SASL security layer. The default is 2\*\*31

- externalssf

  The SSF value provided by an underlying external security layer. The default is 0

- ssf

  The actual SSF value provided by the SASL security layer after the SASL authentication phase has been completed. This value is read-only and set by the implementation after the SASL authentication phase has been completed.

- maxout

  The maximum plaintext buffer size for sending data to the peer. This value is set by the implementation after the SASL authentication phase has been completed and a SASL security layer is in effect.

## SEE ALSO

Authen::SASL, Authen::SASL::Perl

## AUTHORS

Graham Barr, Djamel Boudjerda (NEXOR), Paul Connolly, Julian Onions (NEXOR), Yann Kerherve.

Please report any bugs, or post any suggestions, to the perl-ldap mailing list \<perl-ldap@perl.org\>

## COPYRIGHT

Copyright (c) 2003-2009 Graham Barr, Djamel Boudjerda, Paul Connolly, Julian Onions, Nexor, Peter Marschall and Yann Kerherve. All rights reserved. This program is free software; you can redistribute  it and/or modify it under the same terms as Perl itself.